Tank



Max-c1128, 1939.l l F. 'DE LA CUESTA /I 2,152,246 l TANK 1` l, g. L vlnllill Jef-:7*:

Mmh2s,1939. F. DE LA CUESTA A 2,152,246`

TANK

- Filed sept. 27, 1937 4 sheets-sheet s March, 28, 1939- F. DE LA CUESTA 2,152,246

TANK

Filed spt. 27,' 1937 4 sheets-sheet 4 Erano/Sco Je dfj'/"M Patented Mar. 28, 1939 UNITED STATE-s PATENT OFFICE 1 Claim.

This. invention refers to tanks, especially to those used in water closets, either of upper or lower type, and the principal purpose of the invention is to provide means for avoiding the leakageof these tanks, caused by deficiency in the valves used at present.

In the drawings:

Figure lis a side elevation of a water closet tank of lower type equipped with the improvement subject of the present invention.

Figure 2 is an upper plan view of same.

Figure 3 is a vertical longitudinal partial sectional view in an enlarged scale as per line 3-3 of Figure l.

Figure 4 is a front View, partially sectioned, of the tank.

Figures 5, 6 and 7 are perspective views, in detail, of the different parts of the invention.

Figure 8 is an upper plan View, in detail, of the tank; the floater being removed therefrom.

Figure 9 is a sectional longitudinal View as per line 9 9 of Figure 8.

Figure l0 is a sectional partial view as per line III-I0 of Figure 8.

Figure l1 is a side elevation, partially schematic, of the invention in connection with a tank of the upper type.

Figure l2 is an upper plan View of same.

Figure 13 is a front elevation, partially sectioned.

Making reference to these figures, I is a tank of a water closet of the lower type; the water being supplied as usual.

' At the bottom of the tank there is an opening where through a packing 2, a pipe 3 is secured thereto, which pipe, as shown in Figure 6, is enlarged in its upper end 3 which is closed, as shown by 3" and near to same there are several slots 4. To the threaded end of the pipe 3 which projects out of the tank is threaded the elbow of the discharging pipe 5 which leads to the bowl.

This pipe 3 has secured in its closed upper end a threaded stem 5 whereon, through a nut and washer I, a cylindrical casing 8 is secured; the lower part of this casing has a flanged edge 9 and a cylinder I0 forms an integral part of common wall with the casing 8, which cylinder is open in its upper part. This embodiment is placed in such a manner that the flanges 9 stand on the bottom of the tank 3 forming a chamber II, the walls of which have slots I2 closed by check valves I3 which open inwardly.

In the inner part of cylinder I0 a oating plunger I4 is placed and its rod I5 is guided through a slot in the cross-head I6 which is fastened to the upper edge of cylinder III; the rod having two eyebolts II and I8 at its upper end. The lever I9, which forms part of the usual discharging system operated by handle 20, is engaged to the eyebolt I'I.

The rod 2|, of the inlet means to supply water to the tank, is engaged to the eyebolt I8.

In Figures 11, 12 and 13 the invention is shown in connection with a tank of the upper type and the only variation is that cylinder 8 has an ear 22, where rod 23, of the usual discharge engages, and said rod slides through the upper end of rod I5 standing in its opposite end on a forked bracket 24 fastened to one of the heads of tank I.

In thisv embodiment no connection with the water inlet means appears and it is made by the usual floater system, though this arrangement may be similar to the aforesaid explained for tanks of the lower type.

The operation takes place as follows:

Once the water fills the tank I, it will have passed through the openings I2 and check valves I3 which open inwardly, and lling the chamber 9 below the casing 8 and cylinder Il] forcing the` latter upward to plunger I4 until'it is stopped by thecross-head I8 and at that moment the inlet of the water is closed because plunger I4 works as a floater.

The overflow, if any, will discharge through slots 4 of pipe 3.

By operating handle 28, in case of a tank of lower type, or by pulling the chain, in case of a tank of upper type, the plunger I4, as shown in dotted lines, of Figure 3, will be forced downward compressing the volume of water in cylinder I0 causing check valves I3 to remain closed and upon the rising of the liquid column through the annular chamber between pipes 3 and 8, and discharging through openings 4 of pipe 3, a syphon flow will be formed causing the complete discharge of the tank through the elbow pipe 5 towards the bowl.

While the tank is filled a tight hydraulic sealing is supplied so that there is not the slightest leakage of water into the bowl.

I claim:

In a ush tank, a pipe fixed in an opening in the bottom of the tank and extending upwardly, a cylindrical casing having a closed top surrounding the pipe in a spaced relation with respect thereto, a cylinder arranged adjacent said casing and having a wall portion formed integrally with a wall portion of the casing to provide a wall portion common to the cylinder and the casing, said common wall portion being terminated at the lower end to provide a passage said piston for closing said inlet and manually from the cylinder to the casing, a plurality of flap operable means for moving said piston downvalves for admitting uid from the tank to the wardly in the cylinder to open said inlet whereby lower portion of the cylinder and the casing, a the fluid pressure closes said ap valves and dis- Iloating piston arranged for reciprocation in the charges liquid through said pipe duringY the 5 cylinder, an inlet pipe for said tank, a lever downward movement of said piston. Y operably responsive to the upward movement of Y FRANCISCO DE LA CUESTA, 

